Need to Get the day based on entered date & time

[is_12]

Hi Community,

On the Catalog form I have field start & end date.

Based on the start date need to get the day

 And also based on the start date, need to get the next 3months & 6months & 12months date

Can anyone help me with this

Thanks,

[Ankur Bawiskar · Accepted solution]

@is_12 

try this and it will take care of any date/time format

function onChange(control, oldValue, newValue, isLoading) {
    if (isLoading || newValue == '') {
        return;
    }

    // Parse string to milliseconds
    var dateMS = getDateFromFormat(newValue, g_user_date_time_format);
    var newDT = new Date();
    newDT.setTime(dateMS);

    // Example: Add 3 months
    newDT.setMonth(newDT.getMonth() + 3);

    // If you want 6 or 12 months, just change the +3:
    // newDT.setMonth(newDT.getMonth() + 6); // For 6 months
    // newDT.setMonth(newDT.getMonth() + 12); // For 12 months

    var val = formatDate(newDT, g_user_date_time_format);
    alert(val);
}

Output:I added 3 months, enhance further

💡 If my response helped, please mark it as correct ✅ and close the thread 🔒— this helps future readers find the solution faster! 🙏

[is_12]

@Ankur Bawiskar But instead I need 3months or 6months date from today

[Ankur Bawiskar]

@is_12 

I just now updated the script, are you using the correct one?

share your client script and is it marked as UI Type - ALL

💡 If my response helped, please mark it as correct ✅ and close the thread 🔒— this helps future readers find the solution faster! 🙏

[M Iftikhar]

@is_12 , Add below code in your on change script on start date field.

function onChange(control, oldValue, newValue, isLoading) {
    if (isLoading || !newValue) return;
    var startDate = new Date(newValue);
    var days = ['Sunday', 'Monday', 'Tuesday', 'Wednesday', 'Thursday', 'Friday', 'Saturday'];
    var dayName = days[startDate.getDay()];
    function addMonths(date, months) {
        var d = new Date(date);
        d.setMonth(d.getMonth() + months);
        return (
            d.getFullYear() +
            '-' +
            String(d.getMonth() + 1).padStart(2, '0') +
            '-' +
            String(d.getDate()).padStart(2, '0')
        );
    }
    var next3 = addMonths(startDate, 3);
    var next6 = addMonths(startDate, 6);
    var next12 = addMonths(startDate, 12);
    g_form.setValue('u_day_name', dayName);
    g_form.setValue('u_3_months_date', next3);
    g_form.setValue('u_6_months_date', next6);
    g_form.setValue('u_12_months_date', next12);
}

[Simon Christens]

Hi @Ankur Bawiskar & @M Iftikhar 

Could you please refactor the code to support all the different date formats that ServiceNow provides as each user could change their date / time formats and if its not the OOB yyyy-MM-dd format then both the scripts will break as new Date() expects a specific format

[svirkar420]

Hi @Simon Christens , Try this code this should work for all regions and time formats.

Script: 

function onChange(control, oldValue, newValue, isLoading) {
if (isLoading || newValue == '') {
return;
}

var gdt = new GlideDateTime();
gdt.setDisplayValue(newValue);

var dayOfWeek = getDayName(gdt);

var date3 = new GlideDateTime(gdt);
date3.addMonthsLocalTime(3);

var date6 = new GlideDateTime(gdt);
date6.addMonthsLocalTime(6);

var date12 = new GlideDateTime(gdt);
date12.addMonthsLocalTime(12);

g_form.setValue('day_of_week', dayOfWeek);
g_form.setValue('next_3_months', date3.getDisplayValue());
g_form.setValue('next_6_months', date6.getDisplayValue());
g_form.setValue('next_12_months', date12.getDisplayValue());
}

function getDayName(gdt) {
var jsDate = new Date(gdt.getNumericValue());
var days = ['Sunday', 'Monday', 'Tuesday', 'Wednesday', 'Thursday', 'Friday', 'Saturday'];
return days[jsDate.getDay()];
}

If this answer helps you in any way make sure to Mark this as accepted solution and give a thumbs up this will also benefit others as well.
Regards.
Saurabh V.